a {
    color: #c10000;
    -webkit-transition: 0.8s;
    -moz-transition: 0.8s;
    -o-transition: 0.8s;
    -ms-transition: 0.8s;
    transition: 0.8s;
}

a:focus,
a:hover {
    color: #333;
}

/* Custom default button */
.btn-secondary,
.btn-secondary:hover,
.btn-secondary:focus {
    color: #333;
    text-shadow: none;
    /* Prevent inheritance from `body` */
    background-color: #fff;
    border: .05rem solid #fff;
}


/*
 * Base structure
 */

html,
body {
    height: 100%;
    background-color: #fff;
}

body {
    display: -ms-flexbox;
    display: -webkit-box;
    display: flex;
    -ms-flex-pack: center;
    -webkit-box-pack: center;
    justify-content: center;
    color: #333;

    font-family: "游ゴシック体", YuGothic, "游ゴシック", "Yu Gothic", "メイリオ", sans-serif;
    font-weight: 500;
    /*
  text-shadow: 0 .05rem .1rem rgba(0, 0, 0, .5);
  box-shadow: inset 0 0 5rem rgba(0, 0, 0, .5);
*/
}

section {
    margin: 45px auto;
}

h1 {
    font-size: 2.1rem;
}

h3 {
    margin: 10px auto 25px;
    border-top: 1px solid #c7c7c7;
    padding-top: 30px;
}

.lead {
    margin: 45px auto;
    text-align: left;
}

.cover-container {
    max-width: 59em;
}


/*
 * Header
 */
.masthead {
    margin-bottom: 2rem;
}

.masthead-brand {
    margin-bottom: 0;
    padding: 0px;
    border: 0px;
}

.nav-masthead .nav-link {
    padding: .25rem 0;
    font-weight: 700;
    color: rgba(0, 0, 0, 0.5);
    background-color: transparent;
    border-bottom: .25rem solid transparent;
}

.nav-masthead .nav-link:hover,
.nav-masthead .nav-link:focus {
    border-bottom-color: rgba(0, 0, 0, 0.25);
}

.nav-masthead .nav-link + .nav-link {
    margin-left: 1rem;
}

.nav-masthead .active {
    color: #333;
    border-bottom-color: #333;
}

@media (min-width: 48em) {
    .masthead-brand {
        float: left;
    }

    .nav-masthead {
        float: right;
    }
}


/*
 * Cover
 */
.cover {
    padding: 0 1.5rem;
}

.cover .btn-lg {
    padding: .75rem 1.25rem;
    font-weight: 700;
}

.bookImg{
    margin: 25px auto 10px;
}
.bookImg img{
    width: 300px;
    max-width: 100%;
}


.exp {}
.exp ul {
    padding: 0px;
}
.exp ul li {
    text-align: left;
    list-style: none;
}
.how ul li{
    margin-bottom: 10px;
}
.turn h4{
    font-weight: bold;
    font-size: 2em;
}
.prizeInfo{
    margin: 10px auto 19px;
}
.prize .prizeInfo img{
    width: 400px;
    max-width: 100%;
}

/*
 * Footer
 */
.mastfoot {
    border-top: 1px solid #c7c7c7;
    padding-top: 15px;
    color: rgba(0, 0, 0, 0.5);
}


.forpc {
    display: inline-block;
}

.forsp {
    display: none;
}

@media screen and (max-width: 414px) {
    .container{
        padding: 0px;
    }
    h1 {
        font-size: 1.7rem;
    }    
    .turn h4{
        font-size: 1.6em;
    }    
    .cover{
        padding: 0px;
    }
    .forsp {
        display: inline-block;
    }

    .forpc {
        display: none;
    }
}